Oil filter



' l To all' w kof/n tf/nay concern.'

`mama'le-.eetmeter ...BAYOTNHENaWJEaSEY- Patented May 8, y 1923.

applicati@ fued augustA 25,1920. serialA no; 406,004. u

Be. itfknoivn that We, CLARENCE. A.HAM- ILToN and BENJAMIN' F. Norms, citizens of the United States, and. resident, respectively, of the borough of Brooklyn, cityfof New. York,

in the county ofy Kings, State of New York",

and Bayonne, county of HudsomStateof New Jersey, have invented certain neiv` and useful Improvements inan Oil Filter, of which' the following is a specification..

' This invention relates to an oil filter.4 The filter may also be used for various other' fluids requiring filtration. The filter com` prises a plurality ofi'tanks in'each of Which except the last one or storage tank, the fluidis filtered by gravity and by mechanical means. .The tanks are connected by vpiping and the fluids in the differenty tanksy are maintained above said piping at the same level, to obtain a continuous easy flow of' the` lfluid treated, from the first or inlet tank to the last or storage tank at the same vhydrostatic pressure.

The accompanying drawings represent an exemplification of the filter. `In this instance three tanks arey used Which are indicated by the numerals 20, 40 andl 60.` It is to be understood, however, that a different number of tanks may be employed but the tanks are preferably of the same height. The tank is the charging tank and comprises the side Wall 21, the top 22 With the hinged door 23 and the bottom 24. A funnel shaped outlet fitting 26 with the large inlet end 27 and the apex 28 has connected to its large end 27 the Wire screen 29, and the filter cloth 30. Piping 31 leads from the apex 28 of the outlet fitting 26 to and into v the tank 40. Drain piping 32 with the valve 33 is connected to the bottom 24. A cock 35 and the Water glass 36 are connected to the Wall 21. A drain pipe 37 is connected to the bottom 24 and extends i'ntothe tank 20. The drain pipe 37 has connected thereto vthe U shaped fitting 38 and the valve 39.

The tank 40 is designated Aas the intermediate tank and is similar in construction to the charging tank 20. It consists of the side Wall 41, the top 42 with the hingedy door 43 andthe bottom 44. A .funnel shaped outlet Vfitting 45, at the same level with the fitting26'has the large inlet end *46 and the apex 47 has connected to its inletend 46 thef Wire screen 49 and the filter cloth 50. p Piping 51 on the same level with the pip'- .same level BROQKLYMIN'EW YORK', AND nnaAMIN' if" ing ,31 leads from the147oifthe outlet bottom 41. A cock 55 on thesamelevel withy the cockv 35 'and the-Waterglass56 on'ithe same levell With the Water glass'36 are `con- I f nected to the Wall.y 41. A drain-pipe5.7;is connected to the bottom 44 and extends into the tank40. -The drain pipe-15.7 `has Coni nected thereto the U shapedfittin'gY 58jon the' with rthe fittinglv38 andv the The tank f6.0 is designate'das/theistorage n tank-.andfco'mprises the side Wall? y61,1 the top 62 With the, hinged door 63 and the bottom 64. AAn. outlet cock 65 and Water glass 66 are connected to the `Wall 61. By means of` f the equal levels'ol:l the appurtenances in the the same hydrostatic pressure.

tanks,vthe fluids therein are maintained at To operate the filter, the Storage tank 2O'Vv is charged with theffluid to be filtered'up f to the level 70. The Water in the fluid sep-` arates therefrom by gravity and its level is indicated at 71. The impurities held in mechanical solution Will also fallito thel botsov tom of the tank 20. The separated oil will f i flow through the filter-f cloth 30 the `vvire` screen 29 and through the piping 31 into the tank 40. The Water or `other heavy fluid separated from the oil is discharged through the pipe 37 and the impurities and settlings that collect at the bottom of the tank20 are discharged by the drain piping.' 32. By means of the stop cock 35 oil can bedischarged from the tank 40 before entering the funnel shaped .outlet fitting 26. .l `The opera' tions in the intermediate tank 40 are similar. to those described for tank 20. The filtered oil as it'entersthe tank 4() rises to the level 74 which is at the same level as the fluid in the tank 2()y indicated at v70.` The Water remaining in the oil is separated by` gravity and drops to the bottom of the tank `vvhere its level is indicatedr at 75, which is the same as..A

the level 71 in the tank 20. The impuritiesv l still held inmechanical solution will drop to the bottom of the tank y40 41 and arel ref,y .i

moved by the piping 52. The separated oil if desired can ybe discharged Aby means "of the cock 55, which vis on the same 'levelvvith the coc'k`35 or it can flovvthrough the filter cloth 50,- the yvvirescreen 49 and vthrough the piping 51Which is onthe'same level 4with `the piping 31, into the storagev tank `'Fromv the latter tank the filtered oil cantbe drawn by means of the cock 65.

Having described our invention what Wev desire to securelby Letters Patent and claim 1Sv:p Y y In a filter of ther character'describ'ed the combination of a plurality of tanks on the same level, a funnel shaped outlet fitting` in the first tank positioned With its large inlet end below its apex, a screen and filter cloth at the large inlet end of the'litting, a cock x bottom of' the tank and extending` up into the same, a ysecond tank, piping leading; from the outlet at the apex ofthe outlet fitting in the first tank to the second tank, a funnel shaped outletfitting` in the second tank posil'ioned with its large inlet end below its apex, a screen and a filter cloth at` the large inlet end of' the second fitting, a cock connected to second tank at the same level with the cock connected to the firsty tank,to drain ofi' the fluid in said second tank that has separated therefrom a portion of its impnrities and heavy fluids previously held in suspension, drain piping connected to the bottom of the tank to drain off settlings and heavy fiuids located adjacent to the bottomk of the tank, a drain' pipe connected to the bottom of the `second tank and extending up into the same, a third tank, piping yextending` from the outlet 'endof the fitting in the second tank to the third tank, the ,latter pipinbr on a level with the piping` between the first and secondtank, and an outlet cock fory the third tank.

Signed at the borough of Brooklyn, city of New York, in the county of Kings and State of New York, this 11th day ofAugust, A. D. 1920. c

CLARENCE A. HAMILTON. BENJAMIN F. NOYES. f 

